JP4188254B2 - Automatic drawer - Google Patents

Description

  The present invention relates to an automatic drawer device that can automatically pull out a drawer such as a system kitchen.

  Conventionally, drawers such as system kitchens and furniture are mostly manually pulled out. Therefore, the drawer cannot be pulled out or pulled in with both hands held, or it is extremely difficult. In addition, when the apparatus frame has a multi-stage drawer such as a system kitchen, heavy articles are often stored in the bottom drawer, and heavy articles are put in and out while bent down. Therefore, it is a painful work especially for the physically handicapped and the elderly.

  In order to cope with this, the automatic drawer device is configured by a mechanical mechanism, such as an elastic body such as a spring or a rail that guides the drawer, so that the drawer can be automatically pulled out. However, there is a problem that adjustment between parts and a mechanism for tilting the rail are complicated and adjustment is troublesome.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object thereof is to provide an automatic drawer device that can pull out and pull out a drawer simply by providing a drawer driving mechanism with a simple structure and can produce a high-class feeling. To do.

In order to solve the above-mentioned problems, the invention according to claim 1 is an automatic drawer device comprising a drawer that can be taken in and out of the apparatus frame, and a drawer drive mechanism that moves the drawer in the drawer direction and the pull-in direction . The drawer drive mechanism includes a rotation member, a drive unit, a first support member, and a second support member. The rotation member is rotatably supported by the first support member, and the first support member is the second support member. It is supported in the member through an elastic member, and a part of the outer periphery of the rotating member protrudes from the upper surface of the first supporting member by a predetermined dimension, and the second supporting member is fixed to the device frame to rotate. The member is pressed toward the drawer by the elastic force of the elastic member, and the rotary member is rotationally driven by the driving means to move the drawer in the drawing direction and the drawing direction .

According to a second aspect of the invention, the own Do引 out device according to claim 1, the first support member is supported movably linearly through the guide pin to the second support member, and an elastic member It is biased to approach the drawer .

The invention described in claim 3 is the automatic drawing device according to claim 1, the first supporting member is swingably supported via a support shaft to the second support member, the free end portion by and elastic members It is biased to approach the drawer .

According to a fourth aspect of the present invention, in the automatic drawer device according to any one of the first to third aspects, the driving force of the driving means is transmitted to or interrupted from the rotating member between the rotating member and the driving means. A clutch means is provided .

According to a fifth aspect of the present invention, in the automatic drawer device according to any one of the first to fourth aspects, the rotating member is a roller, contacts the drawer, and the frictional force between the roller and the drawer causes the It is characterized by driving the drawer .

According to a sixth aspect of the present invention, in the automatic drawer according to the fifth aspect , at least the surface of the roller is made of a synthetic resin material .

According to a seventh aspect of the present invention, in the automatic drawer device according to the fifth or sixth aspect, a liner that generates a frictional force with the roller is provided on the roller contact surface of the drawer .

According to the first aspect of the present invention , the rotation member of the drawer drive mechanism is rotatably supported by the first support member, and the first support member is supported by the second support member via the elastic member. In addition, a part of the outer periphery of the rotating member protrudes from the upper surface of the first support member by a predetermined dimension. By fixing the second support member to the device frame, the rotating member is directed to the drawer by the elastic force of the elastic member. The rotating member and the first support member are accommodated in the second support member, and only the second support member is fixed to the device frame (for example, provided in advance in the device frame). By simply fitting and fixing the second support member to the recessed portion), errors such as the attachment position of the drawer and the rotating member are absorbed by the displacement of the elastic member, and the drawer and the rotating member can be engaged in a suitable state. Adjustment for matching is extremely easy.

According to the second aspect of the present invention, the first support member is linearly supported by the second support member via the guide pin and is urged so as to approach the drawer by the elastic member. As in the first aspect of the present invention, the drawer and the rotating member can be engaged in a suitable state only by fixing the second support member to the apparatus frame, and the adjustment for engagement becomes extremely easy. .

According to the invention described in claim 3, the first support member is swingably supported by the second support member via the support shaft, and is urged by the elastic member so that the free end portion approaches the drawer. Therefore, as in the first aspect of the present invention, the drawer and the rotary member can be engaged in a suitable state by simply fixing the second support member to the apparatus frame, and adjustment for engagement is extremely easy. It becomes.

According to the fourth aspect of the present invention, by providing the clutch means for transmitting / disconnecting the driving force of the driving means to the rotating member between the rotating member and the driving means, for example, a geared motor is used as a driving source of the driving means. Even when a motor that does not rotate except when energized is used, the rotation member becomes free by releasing the connection between the rotation member of the clutch means and the drive means, and the drawer can be pulled out manually and smoothly. Become.

According to the fifth aspect of the present invention, the rotating member comprises a roller, contacts the drawer, and drives the drawer by the frictional force between the roller and the drawer, so that the roller is pulled out by the elastic force of the elastic member. Since the frictional force between the roller and the drawer can be adjusted by the pressing force, the drawer can be moved with a simple configuration and an appropriate driving force. In particular, when the roller is brought into contact with the lower surface of the drawer bottom plate, the frictional force between the roller and the drawer varies depending on the weight of the article stored in the drawer, that is, if the weight of the article is large, the force with which the drawer presses the roller is large. Since the frictional force increases and the weight is small, the force with which the drawer presses the roller is small and the frictional force is small, so that the drawer can be taken in and out with an appropriate driving force. In addition, when a heavy article is stored in the drawer, the bottom plate of the drawer may be bent and deformed, but the displacement caused by this deformation can be absorbed by the expansion and contraction of the elastic member. Will come in contact.

According to the invention described in claim 6 , since at least the surface of the roller is made of a synthetic resin material, an appropriate frictional force is provided between the roller and the drawer by selecting the synthetic resin according to the constituent material of the drawer. Can be generated.

According to the seventh aspect of the present invention, since the liner that generates a frictional force with the roller is provided on the roller contact surface of the drawer, the material of the liner is selected according to the material of the roller surface. In addition, an appropriate frictional force can be generated between the roller and the drawer, and wear of the roller contact surface of the drawer can be prevented.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration example of a drawer drive mechanism used in an automatic drawer device according to the present invention. FIG. 1 (a) is a plan view, FIG. 1 (b) is a right side view, and FIG. FIG.

  The drawer driving mechanism 10 includes a roller 12 as a rotating member supported by an inner frame 11 as a first supporting member so as to be rotatable about a shaft 12a, and a motor 13. The rotational force of the motor 13 is transmitted to the roller 12 via the motor gear 14 and the intermediate gear 15. That is, the motor 13, the motor gear 14, and the intermediate gear 15 constitute driving means for rotating the roller 12. At least the surface of the roller 12 is made of synthetic resin (here, urethane resin is used). Reference numerals 18, 19, and 20 are guide pins fixed at one end to the outer frame body 24 that is a second support member, and the other ends of the guide pins 18, 19, and 20 are connected to both ends and side portions of the inner frame body 11. It penetrates the guide pin through holes formed in the three formed ear portions 11a, 11b, and 11c. Coil springs (compression springs) 21, 22 as elastic members between the outer circumferences of the guide pins 18, 19, 20 and between the lower surfaces of the ear portions 11 a, 11 b, 11 c of the frame body 11 and the inner bottom surface of the outer frame body 24, 23 is provided.

  A part of the outer periphery of the roller 12 protrudes from the upper surface of the inner frame body 11 by a predetermined dimension. As shown in FIG. 2, when pressed by a liner 35 attached to the bottom plate of the drawer, for example, each coil spring 21, 22, 23 Are compressed, and the inner frame 11 descends into the outer frame 24. That is, the inner frame body 11 is supported by the outer frame body 24 via the coil springs 21, 22, 23 and the guide pins 18, 19, 20 so as to be linearly movable. Reference numeral 17 denotes a retaining ring that prevents the ear portions 11a, 11b, and 11c of the inner frame body 11 from popping out of the guide pins 18, 19, and 20.

  3 and 4 are diagrams showing an example of a configuration in which the above-described drawer driving mechanism is attached to form an automatic drawer device, FIG. 3 is a partially cutaway side view showing the entire configuration of the drawer device, and FIG. 4 is an attachment of the drawer drive mechanism. FIG. As shown in the drawing, the drawer device 30 has a plurality of drawers (three stages in the drawing), and the drawer drive mechanism 10 is provided at the front end of the bottom frame plate 33 that constitutes the apparatus frame that houses the lowermost drawer 31. It is attached.

  A recess 34 for attaching the drawer drive mechanism 10 is formed at the front end of the bottom frame plate 33, and the outer frame body 24 of the drawer drive mechanism 10 having the above-described configuration is inserted into the recess 34, and screws ( (Not shown) or the like. In this state, the roller 12 of the drawer drive mechanism 10 is pushed by the runner 35 attached to the lower surface of the bottom plate 36 of the drawer 31, and the drawer drive mechanism 10 is in the state shown in FIG. When the motor 13 of the drawer drive mechanism 10 is driven in this state, the drawer 31 moves in the drawing direction by the frictional force generated between the roller 12 and the runner 35 as described above, and finally the state shown in FIG. Become. At this time, a protrusion 31a whose lower surface is flush with the lower surface of the bottom plate 36 is provided at the rear end of the drawer 31 (see FIG. 4A), and by attaching the runner 35 to the lower surface of the protrusion 31a, The drawer 31 can be pulled out and advanced to a position where the contents can be easily confirmed and taken out. Further, as shown in FIG. 4B, a liner 35 having a shape integrated with the protruding portion 31 a may be attached to the bottom plate 36. Since the roller 12 does not have a fixed contact point, the motorized drawer device 30 can cope with a detachable drawer as shown in FIG. The runner 35 is not necessarily required when the frictional force between the roller 12 and the drawer can be sufficiently ensured, or when the wear of the drawer is not a problem due to the contact of the roller 12.

  In the drawer driving mechanism, the inner frame 11 is pushed up by the extension force of the coil springs 21, 22, 23, and the roller 12 is pressed against the runner 35 attached to the lower surface of the bottom plate 36 of the drawer 31. As a result, the height error of the drawer bottom is absorbed by the expansion and contraction of the coil springs 21, 22, and 23, and the roller 12 is reliably pressed against the bottom surface of the drawer 31 to generate the frictional force between the roller 12 and the runner 35 for power transmission. Let In particular, the pull-out drive mechanism 10 is suitable for removable drawers because errors in the height direction are likely to occur compared to fixed drawers. Further, even when a heavy article is stored in the drawer 31 and the bottom plate 36 of the drawer 31 is bent, the displacement due to the bending can be absorbed by the contraction of the coil springs 21, 22, 23. Appropriate frictional force is generated between them, and drawing and retraction are possible.

  FIG. 7 is a perspective view showing another configuration example of the drawer driving mechanism. The drawer drive mechanism 40 has an opening 42 at the center of an outer frame 41 as a plate-like second support member, and the roller 12 protrudes a predetermined amount from the opening 42. One side portion of the outer frame body 41 is cut out at a predetermined interval and bent downward to provide rotation support shaft support portions 41a and 41b. The rotation support shaft support portions 41a and 41b are inner members that are first support members. The frame body 46 is rotatably supported by a rotation support shaft 44, and springs 45, 45 as elastic members (only the spring 45 at one end is shown in the figure) are attached to both ends of the rotation support shaft 44. .

  As in the case of the inner frame 11 in FIG. 1, the roller 12, the intermediate gear 15, and the motor gear 14 are rotatably supported on the inner frame 46. As described above, the inner frame body 46 is rotatably supported by the outer frame body 41 by the rotation support shaft 44, and the roller 12 projects from the opening 42 around the rotation support shaft 44 by the elastic force of the springs 45, 45. It is energized in the direction to do. That is, the inner frame body 46 is swingably supported by the outer frame body 41 via the rotation support shaft 44 and the springs 45, 45, and the free end thereof protrudes from the opening 42 by the elastic force of the springs 45, 45. Is being energized. Also in the drawer drive mechanism 40 having such a configuration, the rotation support shaft support portions 41a and 41b and the inner frame body 46 are inserted into the concave portion 34 formed at the front end portion of the bottom frame plate 33 in the same manner as described above. By fixing the outer frame body 41 to 33, the free end of the inner frame body 46 is urged by the elastic force of the springs 45, 45 so as to approach the bottom plate 36, and an automatic drawer device can be configured.

  In the above example, the rollers 12 of the drawer driving mechanisms 10 and 40 are pressed against the bottom plate 36 of the drawer 31. However, in some cases, the rollers 12 may be pressed against the side face of the drawer.

  In addition, instead of the roller 12 that is the rotating member of the drawer drive mechanism 10 shown in FIG. 1, the drawer drive device is provided with a pinion 60 as shown in FIG. 8A, and the pinion 60 is connected to the motor gear by the motor 13. 14, configured to be driven through the intermediate gear 15. A rack 61 that meshes with the pinion 60 may be provided on the lower surface of the drawer bottom plate 36 as shown in FIG. Of course, the moving body drive mechanism 40 having the configuration shown in FIG. 7 may be replaced by a pinion instead of the roller 12.

  9 to 11 are diagrams showing other examples of the structure of the drawer drive mechanism. FIG. 9 is a plan view, FIG. 10 is a view taken along line AA in FIG. 9, and FIG. 11 is a view taken along arrow BB in FIG. It is. The drawer drive mechanism 70 includes a motor 13, a clutch mechanism 71 that transmits the rotational force of the motor 13, and a roller support mechanism 72 that supports the roller 12 up and down (swings up and down) with a predetermined elastic force. It is the structure to do. The motor 13 is a geared motor and does not rotate unless energized. The motor 13 is fixed to the bottom of the recess 73 a of the frame 73 through a bracket 74. A motor gear 14 is fixed to one end of the rotating shaft of the motor 13.

  The clutch mechanism 71 is located between the motor 13 and the roller support mechanism 72 and has a function of transmitting the rotational force of the motor 13 to the roller 12 that is rotatably supported by the turning plate 85 of the roller support mechanism 72. The clutch mechanism 71 includes an intermediate gear 75 and a clutch 76, and the intermediate gear 75 is rotatably supported by a bracket 74 via a rotating shaft 77 and meshes with the motor gear 14. The clutch 76 is also rotatably supported by the bracket 74 via the rotation shaft 78. An intermediate gear 79 is fixed to one end of the rotation 78, and the rotational force of the intermediate gear 79 is transmitted to the gear 82 fixed to the shaft 12a of the roller 12 via the gear 80 and the gear 81. Yes.

  The gear 80 of the roller support mechanism 72 is fixed to one end of a turning shaft (oscillation shaft) 84 that is rotatably supported by a support member 83 fixed to the bottom of the recess 73 a of the frame 73. A swivel plate 85 is rotatably attached to both ends of the swivel shaft 84. The swivel plate 85 includes a swivel shaft 84, a rotation shaft 86 of the gear 81, and gear support portions 85a and 85b that rotatably support both ends of the shaft 12a of the roller 12 and a coil spring engagement portion in which one end of the coil spring 87 is engaged. It is comprised by 85c, the gear support parts 85a and 85b are mutually arrange | positioned in parallel, and the coil spring engaging part 85c is integrally formed so that both may be connected to the end of the gear support parts 85a and 85b. One end of a plurality (five in the figure) of the coil springs 87 is engaged with the coil spring engaging portion 85 c of the turning plate 85, and the other end is engaged with the bottom of the recess 73 a of the frame 73.

  As shown in FIGS. 10 and 11, the drawer drive mechanism 70 having the above-described configuration is attached to the recess 34 of the bottom frame plate 33, whereby the swivel plate 85 is pulled by the elastic force of the coil spring 87, and the roller around the swivel shaft 84. 12 is urged in the direction of the bottom plate 36, and the roller 12 is brought into contact with the runner 35 attached to the lower surface of the bottom plate 36 by the elastic force of the coil spring 87. Here, the swivel plate 85 constitutes a first support member that rotatably supports the roller 12 as a rotation member, and supports the swivel plate 85 through a coil spring 87 so as to be swingable up and down (vertically swivel). The support member 83 and the frame body 73 constitute a second support member.

  In the drawer drive mechanism 70 having the configuration shown in FIGS. 9 to 11, the motor 13 is a geared motor as described above, and the geared motor is a motor that does not rotate when not energized as described above. Therefore, when the motor 13 is not energized or when the motor 13 cannot be energized due to a power failure or the like, the roller 12 is locked, and the drawer cannot be manually pulled out. Here, as a countermeasure, a clutch mechanism 71 including a clutch 76 is provided between the motor 13 and the roller support mechanism 72. When the clutch 76 is energized, the intermediate gear 75 is connected to the rotary shaft 78 via the clutch 76, and the rotational force of the intermediate gear 75 is transmitted to the rotary shaft 78. It becomes. Therefore, if the motor 13 and the clutch 76 are energized at the same time via the cable 88 and simultaneously de-energized, the rotating shaft 78 is free when the motor 13 is not energized, and the roller 12 is also free. 31 can be pulled out manually and smoothly.

  Further, in the above example, as the drawer driving mechanism, the examples using the drawer driving mechanisms 10, 40, and 10 having the configurations shown in FIGS. 1, 7, 8, and 9 to 11 are shown. For example, a linear motor type in which a reaction panel on the secondary side of the linear motor is pulled out, a linear motor type in which the primary side is attached to the apparatus frame, a magic hand type that is driven and driven by an electric magic hand, and electric It is possible to use a pulling drive mechanism such as a pulley using a driving pulley and a belt + belt system. In the drawer drive mechanisms 10, 40, 10, and 70 shown in FIGS. 1, 7, 8, and 9 to 11, the motor 13 may be an electric motor or a hydraulic motor.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible.

It is a figure which shows the structural example of the drawer drive mechanism which concerns on this invention. It is a figure which shows the state in which the drawer bottom plate was mounted in the drawer drive mechanism which concerns on this invention. It is a figure which shows the structural example of the electrically-driven drawer apparatus which attached the drawer drive mechanism which concerns on this invention. It is a figure which shows the attachment part of the drawer drive mechanism of the electric drawer apparatus shown in FIG. It is a figure which shows the state which pulled out the lowest drawer | drawer of the electric drawer apparatus shown in FIG. It is a figure which shows the state which removed the lowermost drawer | drawer of the electric drawer apparatus shown in FIG. It is a figure which shows the structural example of the drawer drive mechanism which concerns on this invention. It is a figure which shows the structural example of the drawer drive mechanism which concerns on this invention. It is a figure which shows the structural example of the drawer drive mechanism which concerns on this invention. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Drawer drive mechanism 11 Inner frame 12 Roller 13 Motor 14 Motor gear 15 Intermediate gear 17 Retaining ring 18 Guide pin 19 Guide pin 20 Guide pin 21 Coil spring 22 Coil spring 23 Coil spring 24 Outer frame body 30 Drawer 31 Drawer 33 Bottom frame plate 34 Recessed part 35 Runner 36 Bottom plate 40 Drawer drive mechanism 41 Outer frame body 42 Opening 44 Rotating support shaft 45 Spring 46 Inner frame body 60 Pinion 61 Rack 70 Drawer drive mechanism 71 Clutch mechanism 72 Roller support mechanism 73 Frame body 74 Bracket 75 Intermediate gear 76 Clutch 77 Rotating shaft 78 Rotating shaft 79 Intermediate gear 80 Gear 81 Gear 82 Gear 83 Support member 84 Rotating shaft 85 Rotating plate 86 Rotating shaft 87 Coil spring

Claims (7)

An automatic drawer device comprising a drawer that can be taken in and out of the apparatus frame and a drawer drive mechanism that moves the drawer in the drawer direction and in the pull-in direction ,
The drawer drive mechanism includes a rotation member, a drive means, a first support member, and a second support member,
The rotating member is rotatably supported by the first supporting member, the first supporting member is supported in the second supporting member via an elastic member, and a part of the outer periphery of the rotating member is A predetermined dimension protrudes from the upper surface of the first support member, and by fixing the second support member to the apparatus frame, the rotating member is pressed toward the drawer by the elastic force of the elastic member, and the drive An automatic drawer device, wherein the drawer is moved in the drawing direction and the drawing direction by rotationally driving the rotating member by means . In the automatic drawer of Claim 1,
The first support member is supported by the second support member through a guide pin so as to be linearly movable, and is urged by the elastic member so as to approach the drawer. . In the automatic drawer of Claim 1 ,
The first support member is swingably supported by the second support member via a support shaft, and the free end portion is urged by the elastic member so as to approach the drawer. Drawer device. The automatic drawer device according to any one of claims 1 to 3 ,
An automatic drawer device comprising a clutch means for transmitting / blocking a driving force of the driving means to the rotating member between the rotating member and the driving means . The automatic drawer device according to any one of claims 1 to 4 ,
The automatic drawing device, wherein the rotating member is a roller, contacts the drawer, and drives the drawer by a frictional force between the roller and the drawer. In the automatic drawer device of Claim 5,
An automatic drawing apparatus, wherein at least a surface of the roller is made of a synthetic resin material . In the automatic drawer | drawing-out apparatus of Claim 5 or 6 ,
An automatic drawer device , wherein a liner that generates a frictional force with the roller is provided on the roller contact surface of the drawer.

Images